PQI (Power Quality Index)

The Power Quality Index (PQI) is a numerical measure that indicates how well the electrical power supplied to a device or system conforms to standard quality levels. It assesses factors like voltage stability, frequency consistency, and the presence of disturbances such as surges or dips. A high PQI reflects reliable, stable power with minimal disruptions, while a low PQI indicates poorer power quality that could lead to equipment malfunctions or damage. PQI helps monitor, evaluate, and improve electrical supply, ensuring equipment operates efficiently and safely.